Tobacco-pipe.



Patented Mar. ll, I902.

T. E WHITE.

TOBACCO PIPE.

(Application filed Feb. 12, 1901.)

(No Model.)

\ UN E5555:

\NVENTDR JZW Miran TATES ATENT FF-ICE.

TOBACCO- -PIPE.

SPECIFICATION forming part of Letters Patent No. 695,185, dated March 11, 1902.

Application filed February 12, 1901. Serial No 47,033. (No model.)

To (0Z7, whom, it may concern:

Be it known that LTHOMAS E. \VHITE, a citizen of the United States, and a resident of Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Tobacco-Pipes, of which the following is a specification.

My invention relates to tobacco-pipes, and has for its object the admission of air to the bowl that contains the tobacco in such a manner that complete combustionof the tobacco is secured and the smoke is cooled before it reaches the mouth.

Another object of my in vent-ion is to secure the drainage of all nicotin and condensed products from the tobacco-bowl and the deposits thereof in-a position from which it will not be conveyed to the mouth.

Other objects and advantages besides those I have mentioned will be disclosedin the course of the specification that follows.

In the drawings, Figure 1 is a perspective view of my improved pipe. Fig. 2 represents a vertical section of the bowl, and Fig. 3 rep resents an elevation of the inner bowl.

The pipe has an outer bowl A and an inner bowl B. The outer bowl may be of any desired shape and has within it and at or near its rim an annular projection or ring a. I have shown this ring as having a thread upon its inner surface. The inner bowl B is smaller than the outer bowl A, so that there is a space 0 between said bowls thatextends up to the ring CL. The bowl B has a flange 1) upon its top, which is adapted to lie upon and project above the top of the bowl A, and thus prevents the insertion of the inner bowl too deeply into the outer bowl. Below the flange b the bowl B is threaded to correspond with the thread upon the ring a.

I have found that in pipes heretofore constructed only the center of the tobacco near the topedge of the pipe is consumed, for the draft is through the center of the pipe, and combustion consequently takes place mainly through the center and imperfectly or not at allagainst-the side of the bowls. To overcome this defect, I have made a series of perforations Z) through the flange 1) on the inner bowl B. The air is directed through these perforations to all'parts of the top of the bowl and complete combustion at this point results. Below the flange 1) I have also made bowl B. The purpose of these perforations is to produce complete combustion of the tobacco in the bowl below the flange and also to improve the draft. The air enters the bowl B from the top and through the perforations Z) and taking the course of least resistance passes down through the tobacco and out through the series of perforations b that lie next below the ring a, into the space 0 between the two bowls, thus causing a draft toward the sides of the inner bowl. The layer of tobacco that lies above these perforations b will thus in turn be completely consumed. If when the tobacco has been consumed above the perforations b it is found that air cannot be drawn through the next lower series of perforations 19 because of the freer passage open to it through the perforations b the inner bowl B is drawn out from the outer bowl (by unscrewing it, as in the form shown) until the ring a is brought over the series of perforations b so as to prevent the passage of air through them. \Vhen this has been done, it will be found that the air will pass down through the tobacco and outthrough the perforationsb and b and that the combustion of the lower strata of tobacco will be as complete as it was in the case of the upper strata. The number and position of the perforations may ofcourse be varied and the construction of the bowls maybe modified without departing from the'spirit of my invention. It is also obvious that instead of the thread upon the ring a and the bowl B other means for supporting the ployed.

which the air is conveyed to the space between the bowls insures the passage of a considerable quantity of cool air, which, mixing with the smoke in the space between the bowls, cools it before it passes to the mouth. Again, from the fact that the smoke and air are not drawn through the center of a very hot part of the pipe in their passage to the stem, as they are in other pipes, they are less heated than they are in other pipes. Any saliva that may pass into the pipe through several series, ofperforations b b b in the.

bowl 13 in its adjusted position may be em-,

The large number of perforations through the stem D will be received in the space C between the bowls, from which it can be easily removed.

' Another advantage that results from the peculiar construction of my pipe is that the tobacco in the-bowl B does not become saturated or moist by the distillation of the tobacco or by the condensation of the vapor in the highly-heated air that enters the bowl,

and also the moisture from the month cannot be absorbed by the tobacco. I find after having given my pipe very thorough use that the tobacco in the bottom of the bowl B is never wet, and that whatever moisture is deposited in the pipe is always found in the space 0 near the ring a, and that a pipeful length, the rim of the outer bowl fitting the inner bowl, and adapted to cover perforations in the inner bowl when said inner bowl is elesaid inner bowl having transverse passages through its side walls leading from its interior to said space between said bowls; and a stem connection communicating with said space between said bowls, whereby air and smoke pass from the inner bowl through said passages into said space and thence to and through the stem connection, substantially as described.

' THOMAS E. WHITE. \Vitnesses:

C. M. PERKINS,

F. BIssELL. 

